Combined grass-grubber and cultivator.



I o. W. STARK. -00MBINED GRASS GRUBBER AND OULTIVAjTOR.

APPLIOATLON Hun 00120. 1908.

930,996, Patented Aug. 10 1909.

J VENTOR' WITNESSES 0. W.ST ARK. GOMBINED GRASS GRUBBER AND GULTIVATOE.

APPEIOATION FILED OCT. 20.1908

Patented Aug. 10. 1909.

2 SHEETS-SHEET 2.

B119 "3 ciMf-S WITNESSES UNITED slnrns PATENT ornron cuARLrs w.- STARK,or MOUNTAIN LAKE, nINNEsorA.

comnmnn GRASS-GRU'BBER Aim cnprrvnron' no. no es.

e To "all whom it n1m concern."

Be it knownthat I," CHARLIE; 'Wf STARK, a I p I v I I G1tl ZO l1 or. theUnited States, residing at Mountainnake, 1n the county of Cotton-Woodland State of-Minnesota, have invented certain new and usefulImprovements in (lomhined Grass-Grubbers and Cultivators; and Idoherehydeclare the'following to be a full,.clear, and exact descriptionof the inventiom. suchas will enable others skilled in: the artto'wl'iich it appertains to make and use the. same. 4 I v. v

, My inventionrelates to new and useful improvements i'n comhinedg'rass'grubbers and 'va tiln attachinentsout of engagement with the earthssurface. i r

A further object 'is to provide insane for normally .holding thecultivating .attachments in engagement with the earthssurfacetfl i Astill further objectist'o provide a shovel which will permit the grass,etc.,'-to fall back into the furrow madehythe shovel. Other object-sandadvantages will be hereinafter referred to and more" particularlypointed outfin the claims. In the accord anying drawings which made apart of tiis application, Figure 1 a top plan view of the cultivator;Fig. 2 1s a sectlonal view as seen on line 2-2, Fig. 1. Fig. 3 is asectional view as seen on line Fig. 1. Fig. 4 is a perspective View ofone of i the cultivator shovels and supporting shank for the same. Fig.5 is a side elevation of one of the bars employed for holding thecultivatin'g devices in engagement with the eartl'fis surface. Fig. 6 is adetached per spective View of the bifurcated ended member or section ofone of the reach suspending Referringfto the drawings. in which similarreference numerals designate corresponding parts throughout the severalviews, 1 indicates the frame of my improved cultivator,. g

' so that whenia sohd object is encountered,

V Pe t e: h nk i s pivot on the bolt 117,-therebyprevent1hg anywl'ii'elris preferably oblongyas shown, and 2 llli'liitllli'fS the usualor. any preferred form of tbngue employed for guiding, the cultivaton;

v Specification of Letters Patent. Application filed October 20, was.

ofthe axle 5 the shaft 4 and ha'vin'gmounted thereon sup- 'portlngWheels 6.

.with a socketit), in'which curedthe ends of the locking dogs 10, theouter ends of said dogs beingadapted to'enpreferred manner I the ends'ofthe frame 1 and the wheels 6, and said drum and axle are caused torotate Wlth' the axle,

'WllJh the beams."

Patented Aug. 10, 1909.. I Serial 1e. 458,660.

a h ock 3, to the lower ends of which are secured a tubular shaft 4,said shaft extending the full lengthof the frame land is adapted to forma bearing for the axle 5, said axle being rotatably extending beyondeach end of 'lhe-inner ends of the hubs 7 of the wheels 6 have fixedthereto an each end of the extension being provided De ending from eachend bar ofthe frame mounted in said shaft, the endsoblong extension 8,

are pivotally se-" gage the notches IL on the innerwall of adhollow'drum 12, said dogs being yieldingly held in. engagement withsaidnotches by means of springs 13 interposed between the vfree' emilsofthe dogs and the faces of the ex tension 8 v I v,

The drums 12 are fixed to the axle 5111 any and are located between thewheels when the cultivator is moving forward, while in view ofthearrangement of the dogs and no'tchesicooperating thereuith,

either or both of the wheels may be rotated rearwardly without effectingthe rotation of Rotatahly mounted upon and. extending rearwardly fromthe tubular shaft 4 are a plurality ofzbeamsrle, said beams being preferahly formed of two paralleling bars, which are secured together in anypreferred manher, as by means of bolts 15, the rear ends of said beamshaving. shanks 16 secured therevbetween by introducing a bolt 17 throughthe extremerear ends of'the beams end interposed ortion" of the shank16Land in order to nor-may hold the shanks in fixed relation withthefbeam's, the forward ends of the shanks are provided with oblongheads 18;

which heads are provided-with a plurality of openings 19, through whichare extended pins 20 andby extending the ends of. the

pins through registering openings in the bars forming the beams 14 itwill be readily seen that the shan'ksilfi may bedisposed at variousangles and normallv heldiin fixed relation the pin-1 break and.

said pins may be of metal, if desired.

the reach bar and parts carried thereby will i the free end of the "armsbeing likewise rotatably mounted on bars 23, the rear ends of W ich arelvotally ,bars 23 are provided with overhanging lugs.

tions of the suspension bars will become rigid of the suspension bars 23will first swinguppossibility of the shank becoming bent or roken,althou'ghit will be understood that The beams 14 are suspended from areach bar 21, which reach bar is in 'turn fixed to the Outer ends ofarms 22, the inner ends of said the tubular shaft 4.- and in ordertoraise and lower the reach bar 21 and the beams secured thereto, .1provide a air of suspension secured to standards 24 on the reac bar 21,while the forward ends thereof are fixed to an operating shaft 25rotatably mounted in suita le bearings 26 on the frame 1 and it willbereadily seen that when the shaft 25 is rotated, the reach bar 21 andparts carried thereby will befraised or lowere qg 1 a To obtain a more prfect leverage and lessen the amount of energy required to raise thereach bar, the suspension bars 23 are formed in two sections,.the,forward section having a bif'urcated'end 27, which is adapted to receivethe forward end of/the other section and the two sections are ivotallysecured together in any preferred manner as i by means of 'a pin 28 andin order to limit the downward movement of the reachbar 21, the forwardends of the rear sections of the 29,. which lugs are ada ted to extendover and engage the upper e ge ofthe bifurcated I end 27', by whicharrangement the two seewith each other when the reach bar has beenlowered a certain distance. As soon, however, as power is applied torotate the. shaft 25 the bifurcated end of the forward section wardlyand then elevate the reach bar through the medium of the standards 24and rear sec tions of the suspension bars 23, said rear sections formingconnecting links between the bifurcatedends of the forward sections ofthe suspension bars and the standards thereby lessening the amount ofpower-required to rotate the operatingshaft.

Theioperating shaft 25 has secured thereto. a foot lever 30, so that theoperating shaft 25 may be operated by the attendant directing pressurethereon with the foot and-it will be readily seen that the reach bar andparts car- .ried thereby may be held in their elevated positions as longas forward pressure is directed on the foot lever. The she-i125 may alsobeoperated by hand and in this instance a lever 31 is rotatably mountedon the shaft 25 adjacent one of the bearings 26, said lever having alatch 32 mounted thereon, which is adapted to engage a rack bar '33onthe for-1, ward end of one of thejsections of the suspension bar 23and by extending said latch into engagement with the rack bar moving thelever 31 forwardlyand rearwardly,.,

be raised and lowered accordingly. The lever 31 also carries a latch 34,whichis adapted to cooperate with a rack bar 35 fixed on one of thebearings26, whereby the reach bar and parts carried thereby may be heldin their elevated position, it being understood of course that the latch34 is disengaged from the rack bar 35, while the lever 31 is beingoperated.

The upper end of thelever 31 is provided with a handle.36, through whichextends a plun er 37, one end of the plunger havim secure thereto oneend of a link 38, said link being pivotally secured between card 39 onthe lever 31 and has its lower end connected in any suitable mannerto'the latch 34 and by this construction it will be readily seenthatwhen it is desired to release the latch 34 from the rack 35'an endthrust is given to the plunger 37', which will swing the link 38 on itspivot point and elevate the latch 34. The latch 32 is likewisecontrolled by a lever 40. the lower end of which is pivoted to the lever31 and extends upwardly to-a point adjacent the handle 36, the extremeupper end of the lever being bent to ahorizontal position to form agripping portion 41, said gripping portion extending parallel with thehandle section 36 so that when it is desired, both the handle andgripping section can be grasped and operated simultaneously and as theatch 32 'is secured to the lever 40, the

'movementof the gripping'portion of said lever in juxtaposition to thehandle 36-, will re- -lease the latch 32 from the rack bar 33 and whenit is desired to hold the latch 32 out of engagement with the rack bar33, as when the reach bar and parts carried. thereby are to be operatedby the foot lever, or power lift,"the latch 32 is held out of engagementwith the rack bar 33 by securing the upper end of the lever 40 injuxtaposition to the handle 30 by means of a hook 42. which hook isextended around the protruding end of the plunger 37 and has its hookportion in position to engage the gripping portion 41 of the lever 40.The reach bar is also adapted to be elevated by power lift by therotation of thewheels 6 and to accomplish this result, the drums 12havesecured thereto ratchet wheels 43, with which are adapted toengagepmvls44,- carried at the ends of a rod 45, said l'ml being rotatably mountedin openings in the arms 22 and adjacent the reach bar 21, saidpawlsbeing normally held out of engagement with the ratchet wheels -13 bymeans of springs 46, said springs being wound around the rod 45 andhaving one of their ends socured thereto, while their opposite ends aresecured to the reach bar .21.

' In order to partially rotate the rod 45 and move the pawls intoengagementwith the ratchet wheels 43, a trip bar 47 is fixed to the rod45 and extended forwardly therefrom, trip bar being connected thelovvei? ends'fof the guards Inorder'to' preventundue breakingof the.pins 20, as when'theshovels engage solido-b-- gigo pjectsj the beams:14' are'iyieldingly secured to to a tree dle the operating 'shaf t 25reach barnd beam rri d thereby i meansota link 49, the. treadle 48havingan I ekten'sion tetheneen, towvhjich the upper end of thelin'ke49-issecuredf id the; tire adle inj-Tpositioni on the -shafit 2.5and P -"e en-tlyf oi'r-s-aid'shaft, the "treadleAIS is provided thesametoI-move a distance independa' .j'a slot 51, through which extends apin" '52 carried by-thesh'aft 215 and by forming the slot'of suflicientlength, thetreadle 48-May be moved'iorwardly to bringthe pawls into en'g agement wvithatheirb' respective ratchet Wheels without effecting.thev operation of the shaft25 and it -Wil-l likewiseibe seen that thetreadle" may be r everse'ly. movedto releasethe, "pan-ls fro'in theirrespective ratchet Wheels without effecting the operation of: h

'i pr ided daptei'l-tovp'ass below the reacl'i bar 2'1 and i it 'irearward swinging "movement :of 1 44 and by this means Will-"be see thattl1e' ]pawls Willbe held'in. )o'sition dily' engage the ratchet'wheels"when adleisswung forwardly; I 'Iowerends ofthe shanks llhaveselere-to: keepers 54;]the upp'erends of 1c guards are curved rea-rwaimlly and forndfthe' edges" of' said gu ards" are} also tap edandterminate ina point attheirupper.

. nds wher eby grass, etc;;,will" readily.- pass layer and around theguards and fall into the I furrows 'made by theli'shov'els 5 1- securedto the reachbar 21 extending hanger rods 365 through the horizontal.portion of the reach bar and pivota'lly securingthe lower ends of thehanger rods between the two sections forming 'thebeams, so that saidbeams may be moved upwardly a short ,distance when the shovels encountersolid objects and in order to normally hold the shovels in engagefnentwith the soil, springs 66 v are dis osedaround the rods 65 between thereach liar 21 and beams 14', the tension of said springs beingsuch as tohold the shovels in engagement with the soil under. norinal cir-jcumstancesi, r

If the beams are to be elevated by. power lift, the lever 31 and partsattachedthere'to are placed in the same positionjas when the beams areto be raised by the foot lever and when it is desired to'raise saidbeams,fthe operator directs forward pressure on the treadle 48, Which;111 view of the slot-51 w ll rotate on the shaft 25 andbring the paw ls.j

into engagement with the teeth" on, the

in order to; hold 11 extension 53 1 which extensionis eepers"terminating in guards '55,

1y to conform to the curve the shank (Jo-incident, howeveryito theengagement of of the' slot "51 have en agedJthe pinand'shghtlyrot-atedthe sha t 25 to move the 's' ecti ons of the"suspension bars 23 'out'ofiallneme'nt with .each other; therebyper1nit-- ting the reach bar andbearns to ascend. I

bar 47 Willengage theiraine '1 and swing the paWls 44 out of engagementwith the ratchet Wheels 43, thereby permitting the reach bar and'bea'nsto' again descend gunless it is desired to retain-thesame in anelevated positionfin which case the operator places his footagainstthe-lever 30 and holds the reacl'r barand beams, in; thei1' elevatedposition.

If, on'the otherhand, the beams are tobe elevated by hand, the lever 31andlat'ches thereon .are brought into operation, said "lever 31 beingfirst swungrearwardly the -pro per distanceand the lever 410 'rele'aselfrom the hook-42; thereby permitting the latch 3 2 ,t0 engage withtheteeth on the-rack 'bar 33 andhen it is-desi'red' to elevate the beamsand reach bar theplunger 3.7 isoper a'tedv to" release thelatch 34 fromthe rack. bar 35-lwhen the lever'BLis swungforwardly and as the latch 32is engaged witll-thc-racir bar 33', the shaft 2.5 will b rotated.andtheth P Wls with the ratchet. Wheels;- the en cl'"\nihenthejreachIbar has been elevated to lts full stroke, the forwardportion of the trip reach bar and beam secured theret'o, elevatca;i

andif it is desired to hold, the beams in an elevated position, pressureis released from the plunger 37 'andthe latch 34per1ni'tted to engagethe teeth on the forward portion of I the rack bar 35 therebylholdingthe beams in their elevated positions until such timeas' thelatc'h 34isfagain disengagedfroni its rack bar.

. When the parts: are operatedby hand,

will also" be'seen that theniovement of the beams may bereadily.regulated by engaging the latch 32 at variouspoint's on the rack-bar.33; as when the latch is f engaged-"with the "teeth at the. rear endofthe rackbar and the lever moved forwardly its full 'stro'kejthe beamswill beflelevated to their full height, but should the latch .be'engagedwith notches 'arther forwardon the rack bar, the beams I 14 will beraised to a less height.

. Instead of em loying the form of shank herein shown-an attaching-ashovel thereto,

. that form .offshank disclosed in my former applicationSerial 0.38,562, filed Aug. 1st, 1907 and allowed J an. 8, 1908,:nay be used.instead,"'the operation of'the various parts of the device'- being thesame in both instances.

' It will thus be seen that Ihave provided a device that may beoperated'in various ways to-elevate the cultivator beams-and artscarriedtherebyout of engagement Wit the earthssurface. 7

It Willfurther be seen that by providing the cleaning device, grassesand like rubbish j will be, removed fromengagement with the shanks andshovels, when the beams carrying the shanks are elevated-and it willlikewise suspension bars, -'said pivotally supporting. means; beingconnected to said reach bar,

beseen that by constructing-the shovelin the manner, shown, the cleaningdevices Willbe separatedto pass along the edges of-the shovels and atthe. same time permit the grass, etc., re1n'oved by-the shovel to passover-the top thereof and remain in the fur I-QW' made by t vel- V Il/Vhat lclai s 1 In a cultivator attachment, combi nationw th a frame, atubular shaft carriedby said frame,- an' aide extending through saidshaft and Wheels on said axle; of a reach bar,"meansto pivota'lly securesaid reach'bar to saidtubular shaft, beams extended from said reach bar,means to yieldingly secure said beams-to said reach bar, an operatingshaft rotatably-mounted on said frame, sus 'pendingbars, means. ofconnection between said-suspending bars and. said operating shaft, meansfor 'pivotally',supporti1 1g said said suspension bars being formed insections and pivot'ally. connected togethen'means on, one of.sai-dsections adaptedto. engage the: opposite section and limit swingingmovement of said sections and additional means engagingthe operatingshaft to rotate the same whereby the reach bar andbeams carriedtherebymay be elevated,

2. In a cultivating device of the class described, the combination witha frame having a tubular shaft thereon ;=of a reach bar,

beams sus ended from said reach bar, means to pivotal y connect saidreach bar to said tubular shaft, means ,for yieldingly suspending saidbeams from said reachlbar, an open, ating shaft rotatably mounted onsaid frame,

suspension bars, means of connection between said suspension barsandsaid-operating shaft, means for pivotally supportlng operating shaft,a latch on said lever ada ted to 006 erate with the rack bar, a controling lever or said latch, a rack bar'adjacent the latch is not in usefor rotating the operating said suspension bars, said pivotally suportmg means being connected to said reac bar, sald suspensionbars be ngformed in sections, the end of one of said sections being.

bifurcated to receive the end of the opposite section, ineansforlimiting swinging moveerating with I said operating shaft, wherebysaid shaft may be rotated manually or by,

power lift, for elevating said -'reach bar and said frame, means ofconnection'between said operating shaft and said reach bar, sus ensionbars, said suspension bars being forme 1n sec- '50 .ment of saidsections in one direction, coop tions andhingedly secured togetheijmeans to limit the swinging movement of said sections in onedirection, a rack bar onone of said sus-,

pension bars, a lever pivot ally mounted on said first mentioned-rackbar, a latch also carried by the first mentionedlever adapted to cooperate with the last mentioned rack bar, means to operate thelastmentioned latch and additional means tosecure the first mentioned latchout of engagement withits respective rack barwhen the first. mentionedshaft.

In testimony whereof I have signed my; name to this specification in thepresence of two subscribing witnesses.

CHARLIS W. STARK. .Witnesses ABR. JANZEN. C. O. WIEBE.

